Solidarity is a Trade Union in Poland which played a part in ending Communist dictatorship in Poland and also in Central Europe, then the Balkans and the Soviet Union, dismantling the Eastern Bloc. The first leader of Solidarity was Lech Walesa who started the Union at the Gdansk Shipyard. Solidarity became a large scale movement opposing Communism. The Communists first repressed Solidarity and imprisoned Lech Walesa. Later the Communists were forced to negotiate with Solidarity.
At the start of the 1990’s there were democratic elections in Poland and Lech Walesa became president. Since then Solidarity became a more normal Trade Union and less influential in politics.